Missouri officials warn of potent new opioid, nitazene St. Louis American Nitazines found in black market vapes as criminals make new variations to evade detection ABC News Nitazenes "New" Opioids Stronger Than Fentanyl Brooks What are nitazenes? :: High Alert Rise in fentanyl and nitazene overdose deaths as Taliban enforces opium ban More than 1200 vape vials laced with nitazene, a synthetic opioid 200 times more potent than morphine, were sold across Sydney, sparking Australia's first arrest over vapes spiked with the drug. Police